Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 2, Issue 10, Pages 2910-2914Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am100605a
Keywords
TiO2 nanotube arrays; CdS; chemical bath deposition; photoelectrochemistry; photocatalyst; visible light
Funding
- Science and Technology (MEST)/Korea Science and Engineering Foundation (KOSEF) [2010-0026150]
- National Research Foundation of Korea [2010-0026150, 핵06A1606] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A sonication-assisted sequential chemical bath deposition (S-CBD) approach is presented to uniformly decorate CdS quantum dots (QDs) on self-organized TiO2 nanotube arrays (TNTAs). This approach avoids the clogging of CdS QDs at the TiO2 nanotube mouth and promotes the deposition of CdS QDs into the nanotubes as well as on the tube walls. The photoelectrochemical and photocatalytic properties of the resulting CdS-decorated TNTAs were explored in detail. In comparison with a classical S-CBD approach, the sonication-assisted technique showed much enhancement in the photoelectrochemical and photocatalytic activities of the CdS QDs-sensitized TNTAs.
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